WSG Check MCP Server

WSG Check is an MCP integration. Check websites against the W3C Web Sustainability Guidelines and look up the guidelines.

Packages and local setup

The published npm package is @sustainablewebsites/wsg-check, version 0.6.0. Its declared MCP transport is stdio.

The package declares WSG_CHECK_NO_LOCAL: Set to 1 to block localhost and other loopback URLs, which are allowed by default; WSG_CHECK_ALLOW_PRIVATE: Set to 1 to allow private network URLs (10/8, 172.16/12, 192.168/16).

This package has launch arguments in its registry record. Use the maintainer’s configuration for those arguments rather than launching it with only the package name.

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 0.6.0 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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